Fig. 3
From: Cerebellar venous thrombosis mimicking a cerebellar tumor due to polycythemia vera: a case report
a Relatively normal anatomical venous structure of the right cerebellum releaved by 3D T1-MPRAGE; b The left tentorium of cerebellum displayed by 3D T1-MPRAGE, with more evidently disorganized vessels (arrow) than those in the other side; c Abnormally increased and disorganized venous vessels in the inferior portion of the left cerebellar hemisphere (arrowhead); d TOF MRV imaging showing no characteristic changes, with no filling defects in the dural venous sinuses or in major vessels of the deep cerebral venous system; e The tortuous and dilated veins in the left cerebellar hemisphere draining through the right transtentorial sinus and showing delayed drainage; f The unvisualized left transtentorial sinus